Bibliographic References

Cawthra EM (1957) Description of a new species of Grypidius Schoenherr (Col.: Curculionidae) with a key to the genus. Proceedings of the Royal Entomological Society of London, Series B, Taxonomy 26: 127-130.
http://dx.doi.org/10.1111/j.1365-3113.1957.tb00391.x